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The customers association thought that the mean number of days for a package to arrive in...

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Statistics

The customers association thought that the mean number of daysfor a package to arrive in Australia is more than 13 days. Assumethat the population standard deviation is unknown. Does the sampledata obtained provide evidence that the mean arrival time forpackages is more than 13 days at the 5% level of significance? Usethe p value approach. Show the Calculation steps by Excel. Whatformulas in statistics are used? Data of arrival time is givenbelow.

7
21
23
24
18
16
2
19
11
6
3
13
17
9
5
12
13
17
4
14
15
25
12
24
22
14
14
20
15
11
26
17
21
11
4
13
16
14
13
14
25
23
9
15
14
12
19
11
18
9
12
13
17
6
19
17
13
23
16
17
11
15
11
23
8
16
10
26
19
16
23
15
20
30
21
21
14
1
13
14
21
3
26
18
6
17
18
15
10
14
9
17
10
16
13
9
14
6
19
4
8
4
7
8
2
21
6
14
20
7
18
11

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